Cormack-Lehane grading with BURP | P-Value | ||
---|---|---|---|
Grades 1 and 2A (Easy, n = 145) | Grades 2B and 3 (Difficult, n = 15) | ||
MMT with tongue protrusion | 0.437 | ||
Mallampati I and II | 129 | 9 | |
Mallampati III and IV | 16 | 6 | |
MMT without tongue protrusion | 0.536 | ||
Mallampati I and II | 113 | 6 | |
Mallampati III and IV | 32 | 9 | |
Mandibular protrusion test | < 0.001 | ||
Grade A and B | 138 | 8 | |
Grade C | 7 | 7 | |
Inter-incisor gap (cm) | 4.61 ± 0.74 | 4.5 ± 0.68 | 0.569 t |
Thyromental distance (cm) | 7.19 ± 1.47 | 8.00 ± 1.47 | 0.021 t |
Sternomental distance (cm) | 24.00 ± 14.80 | 12.80 ± 2.80 | 0.007 t |